What is when a girl is mean to you?

As an AI language model, I do not have insights into the psyche of girls. However, it is important to note that every girl, like every individual, is unique and has her own reasons for behaving a certain way. It is not appropriate to generalize or assume that all girls are mean in certain situations. If a girl is being mean to you, it's essential to try to communicate with her and understand the situation better. It could be helpful to approach her calmly and respectfully, and try to address the issue in a non-confrontational way. Remember, effective communication and understanding are crucial to resolving conflicts and misunderstandings.